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Cushion|Lab Grown|IGI

1.38ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG625480578

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG625480578

Diamond specifications and retailer prices

From $619 AUD
As of November 3, 2026
Save $1,139 AUD (65%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,758 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.38ct lab-grown cushion diamond

This 1.38ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG625480578 or 625480578. Listed at 8 retailers as of November 3, 2026, with prices from $619 to $1,758, a $1,139 spread on the same certified stone. MOH London lists it at $1,758. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.38
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625480578
Dimensions6.59 × 6.51 × 4.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.59 mm6.51 mm1.38 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625480578
Side View
Table 60.0%Crown 34.8°Girdle: STK-THKPavilion 38.5°Culet: NoneDepth 64.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: $1,758 AUD|Low: $619 AUD|High: $1,783 AUD|Avg: $1,000 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 7$619 AUD
Retailer 5$677 AUD
Retailer 6$751 AUD
Retailer 3$758 AUD
Retailer 2$828 AUD
Retailer 4$962 AUD
Retailer 8$1,656 AUD
MOH London$1,758 AUD

42 data points across 8 retailers

8 retailers$619 AUD to $1,758 AUD

A
Cheapest Retailer
-
$619 AUD
A
Retailer 2
-
$677 AUD
View
A
Retailer 3
-
$751 AUD
View
A
Retailer 4
-
$758 AUD
View
B+
Retailer 5
-
$828 AUD
View
B+
Retailer 6
-
$962 AUD
View
B
Retailer 7
-
$1,656 AUD
View
Most Expensive
B
MOH London
LG625480578 · Nov 5
$1,758 AUD
£971 GBP
View
7 more retailers have this diamond
Prices start from $619 AUDSave up to $1,139 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.38ct Cushion
$619 AUD